Data Replication and Recovery Over Any Distance Ensuring 100% Data Consistency
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Overview: All enterprise applications that handle data, such as file systems and databases, are written so that they can reliably recover from failures that cause the application to crash. These applications are called crash tolerant, and their recovery is based on the fact that any changes to their data are written in a very well-defined order that is controlled by the application. This white paper discusses the storage industrys attempts to address the distance issue for disaster recovery purposes, evaluates the approaches to preserving primary site write ordering in asynchronous replication solutions, and points out the

